Which NHL team went unbeaten for 35 consecutive games during the 1979–80 season?

The Philadelphia Flyers went unbeaten for 35 consecutive games during the 1979–80 NHL season.

The streak began on October 14, 1979, and ended on January 6, 1980, when the Minnesota North Stars defeated Philadelphia. The Flyers’ run included 25 wins and 10 ties, because NHL games that ended level were not decided by overtime at that time.

Philadelphia finished the season with the best record in the league and reached the Stanley Cup Final. The New York Islanders defeated the Flyers in six games, ending Philadelphia’s attempt to win a second consecutive championship.

The streak is often called an unbeaten streak rather than a winning streak. That distinction matters: the Flyers did not win all 35 games, but they avoided defeat in every one, setting a record that remains one of the NHL’s most recognizable team marks.